package com.webserver.core;

import com.webserver.http.HttpRequest;
import com.webserver.http.HttpResponse;

import java.io.File;

/**
 * 用于处理请求
 */
public class DispatcherServlet {
    public void service(HttpRequest request, HttpResponse response){
        String path = request.getUri();
        File file = new File("./webapps"+path);

        //如果请求的资源存在并且是一个文件则正确
        if(file.exists()&&file.isFile()){
            //正确情况
            response.setEntity(file);

        }else{//否则该资源是不存在的，要响应404
            //没有
            response.setStatusCode(404);
            response.setStatusReason("NotFound");
            file = new File("./webapps/root/404.html");
            response.setEntity(file);
        }

        //该响应头是告知浏览器服务端是谁
        response.putHeader("Server","WebServer");
    }
}
